hig-patterns

Apple HIG: Interaction Patterns Check for .claude/apple-design-context.md before asking questions. Use existing context and only ask for information not already covered. Key Principles Minimize modality. Use modality only when it is critical to get attention, a task must be completed or abandoned, or saving changes is essential. Prefer non-modal alternatives. Provide clear feedback. Every action should produce visible, audible, or haptic response. Activity indicators for indeterminate waits, progress bars for determinate, haptics for physical confirmation. Support undo over confirmation dialogs. Destructive actions should be reversible when possible. Undo is almost always better than "Are you sure?" Launch quickly. Display a launch screen that transitions seamlessly into the first screen. No splash screens with logos. Restore previous state. Defer sign-in. Let users explore before requiring account creation. Support Sign in with Apple and passkeys. Keep onboarding brief. Three screens max. Let users skip. Teach through progressive disclosure and contextual hints. Use progressive disclosure. Show essentials first, let users drill into details. Don't overwhelm with every option on one screen. Respect user attention. Consolidate notifications, minimize interruptions, give users control over alerts. Never use notifications for marketing. Reference Index Reference Topic Key content charting-data.md Charting Data Data visualization patterns, accessible charts, interactive elements collaboration-and-sharing.md Collaboration & Sharing Share sheets, activity views, collaborative editing, SharePlay drag-and-drop.md Drag and Drop Drag sources, drop targets, spring loading, multi-item drag, visual feedback entering-data.md Entering Data Text fields, pickers, steppers, input validation, keyboard types, autofill feedback.md Feedback Alerts, action sheets, haptic patterns, sound feedback, visual indicators file-management.md File Management Document browser, file providers, iCloud integration, document lifecycle going-full-screen.md Going Full Screen Full-screen transitions, immersive content, exiting full screen launching.md Launching Launch screens, state restoration, cold vs warm launch live-viewing-apps.md Live Viewing Apps Live content display, real-time updates, Live Activities, Dynamic Island loading.md Loading Activity indicators, progress views, skeleton screens, lazy loading, placeholders managing-accounts.md Managing Accounts Sign in with Apple, passkeys, account creation, credential autofill, account deletion managing-notifications.md Managing Notifications Permission requests, grouping, actionable notifications, provisional delivery modality.md Modality Sheets, alerts, popovers, full-screen modals, when to use each multitasking.md Multitasking iPad Split View, Slide Over, Stage Manager, responsive layout, size class transitions offering-help.md Offering Help Contextual tips, onboarding hints, help menus, support links onboarding.md Onboarding Welcome screens, feature highlights, progressive onboarding, skip options playing-audio.md Playing Audio Audio sessions, background audio, Now Playing, audio routing, interruptions playing-haptics.md Playing Haptics Core Haptics, UIFeedbackGenerator, haptic patterns, custom haptics playing-video.md Playing Video Video player controls, picture-in-picture, AirPlay, full-screen video printing.md Printing Print dialogs, page setup, AirPrint integration ratings-and-reviews.md Ratings & Reviews SKStoreReviewController, timing, frequency limits, in-app feedback searching.md Searching Search bars, suggestions, scoped search, results display, recents settings.md Settings In-app vs Settings app, preference organization, toggles, defaults undo-and-redo.md Undo and Redo Shake to undo, undo/redo stack, multi-level undo workouts.md Workouts Workout sessions, live metrics, Always On display, summaries, HealthKit Pattern Selection Guide User Goal Recommended Pattern Avoid First app experience Brief onboarding (max 3 screens) + progressive disclosure Long tutorials, mandatory sign-up Waiting for content Skeleton screens or progress indicators Blocking spinners with no context Confirming destructive action Undo support Excessive "Are you sure?" dialogs Collecting user input Inline validation, smart defaults, autofill Modal forms for simple inputs Requesting permissions Contextual, just-in-time with explanation Requesting all permissions at launch Providing feedback Haptics + visual indicator Silent actions with no confirmation Organizing preferences In-app settings for frequent items Burying all settings in system Settings app Output Format Recommended pattern with rationale , citing the relevant reference file. Step-by-step implementation covering each screen or state. Platform variations for targeted platforms. Common pitfalls that violate HIG for this pattern. Questions to Ask Where in the app does this pattern appear? What comes before and after? Which platforms? Designing from scratch or improving an existing flow? Does this involve sensitive actions? (Destructive operations, payments, permissions)